Salade Lyonnaise (Frisée Salad with Poached Egg and Lardons)

In a salade Lyonnaise, bitter frisée or curly endive is treated less like a cold side salad and more like a warm, savoury plate in its own right. Crisp lardons, toasted bread and a sharp Dijon vinaigrette give the leaves smoke, crunch and acidity, while the poached egg turns the dressing glossy as the yolk breaks over the salad. Closely associated with Lyon’s bistro cooking, it is substantial without feeling heavy and works well as a quick dinner, a first course or a simple lunch when served straight away while the bacon and vinaigrette are still warm.
Cuisine style French bistro salad
Flavor profile Tangy • Savoury • Rich
Techniques Poaching • Sautéing
Key equipment Saucepan • Large frying pan • Whisk
Time commitment Under 30 minutes

Why this recipe works

  • Crisp and tender contrast: Frisée keeps a slight bite against crisp croutons and lardons, while the poached egg adds a soft, rich finish.
  • Sharpness balances richness: Dijon mustard and red wine vinegar cut through the bacon fat and egg yolk, keeping the salad lively rather than heavy.
  • Fast warm assembly: The croutons, bacon, vinaigrette and eggs are prepared in quick succession so the salad reaches the plate warm and fresh.

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Authenticity notes

  • Lyonnaise style: The defining combination is frisée, lardons, croutons and a poached egg, dressed while the bacon is still warm.
  • Warm vinaigrette: Whisking hot bacon fat into the mustard dressing gives the salad its characteristic savoury depth and lightly wilted leaves.

Ingredient notes

  • Choosing the leaves: Curly endive, often sold as frisée, brings the bitter edge and sturdy texture this salad needs.
  • Cutting the bacon: Small lardons cook evenly, render their fat quickly and distribute smoky flavour through the salad.
  • Balancing the dressing: Red wine vinegar gives a clean sharpness; sherry vinegar makes the dressing rounder and slightly softer.

Timing notes

  • Serve immediately: This salad is best eaten as soon as it is dressed, while the bacon is warm, the croutons are crisp and the egg yolk is still runny.
  • Prepare before poaching: Slice the shallot, tear the bread and set out the dressing ingredients before the eggs go in, as the final assembly moves quickly.

Common mistakes

  • Boiling the poaching water: Keep the water at a bare simmer; vigorous bubbling can break up the whites before they set.
  • Over-dressing the leaves: Add most of the vinaigrette first, toss gently, then finish with the rest only if the salad needs it.

Equipment you'll need

Ingredients
Instructions
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  1. Bring a saucepan of water to a gentle simmer for poaching. Tear the sourdough into bite-sized pieces. Cut the bacon into lardons and finely slice the shallot.
  2. Heat 1 tbsp of the olive oil in a large frying pan over medium heat. Fry the sourdough for 3 to 4 minutes, turning, until golden and crisp, then tip into a mixing bowl. Keep the pan on the hob.
  3. Add the bacon to the same pan and cook over medium heat for 5 to 7 minutes until crisp and the fat has rendered. Stir in the shallot and cook for 1 minute until softened but not browned.
  4. Whisk the Dijon mustard, red wine vinegar, fine sea salt and black pepper in a small bowl. Whisk in the remaining 1 tbsp olive oil, then whisk in 2 tbsp of the hot bacon fat from the pan to make a warm vinaigrette.
  5. Add the curly endive to the bowl with the croutons. Tip in the warm bacon and shallot, then drizzle over most of the vinaigrette and toss gently so the leaves just start to wilt.
  6. Crack the eggs into two small cups, then slide them into the barely simmering water. Poach for 3 to 4 minutes until the whites are set and the yolks are still runny, then lift out carefully.
  7. Divide the salad between two plates and spoon over any remaining vinaigrette. Top each with a poached egg and finish with a little extra black pepper. Serve straight away while warm.

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Recipe notes

Tips

  • Keep the poaching water at a bare simmer so the whites set neatly without breaking up.
  • Dress the curly endive while the bacon is still hot so the leaves soften slightly but keep their bite.
  • If serving anyone who should avoid undercooked eggs, poach the eggs until the yolks are fully set.

Substitutions

  • Replace sourdough bread with baguette for a more traditional crouton.
  • Replace red wine vinegar with sherry vinegar for a rounder, slightly sweeter acidity.
  • Replace Dijon mustard with whole-grain mustard for a coarser texture in the vinaigrette.

Storage

  • Refrigerate up to 1 days
  • This salad is best eaten immediately. If needed, refrigerate the dressed salad and bacon separately from the poached eggs, then reheat the bacon gently in a frying pan and poach fresh eggs to serve.

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Salade Lyonnaise (Frisée Salad with Poached Egg and Lardons)
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Recipe overview

  • Servings: 2 servings
  • Total time: 25min (25min active)
  • Difficulty: Medium
  • Cuisine: French
  • Allergens:
    Eggs Gluten Wheat

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